MICRF505L datasheet(6/43 Pages) MICREL

6 / 43 page

Micrel

MICRF505BML/YML

August 2006

M9999-092904

+1 408-944-0800

Absolute Maximum Ratings

(1)

Supply Voltage (VDD).........................................+2.7V

Voltage on any pin (GND = 0V)...... -0.3V to 2.7V

Supply Voltage VDDin…………………………..0 to 6V

Storage Temperature (Ts) ................-55°C to +150°C

ESD Rating

(3)........................................................ 2kV

Operating Ratings

(2)

Supply voltage (VDDIn)………..…….+2.25V to +5.5V

RF Frequencies.......................... 850MHz to 950MHz

Data Rate ................................................<200kBaud

Ambient Temperature (TA) ................–40°C to +85°C

Package Thermal Resistance

MLF

TM (θJA) ...........................................41.7°C/W

Electrical Characteristics

(4)

fRF = 915MHz. Data-rate = 125kbps, Modulation type = closed-loop VCO modulation, VDD = 2.5V; TA = 25°C, bold

values indicate –40°C< TA < +85°C, unless noted.

Symbol

Parameter

Condition

Min

Typ

Max

Units

RF Frequency Operating

Range

850

950

MHz

Power Supply

2.25

5.5

Power Down Current

0.3

µA

Standby Current

370

µA

Low Voltage Dropout regulator

Output Voltage

2.5

Turn-On Time

µS

VCO and PLL Section

Reference Frequency

MHz

915MHz to 915.5MHz

0.5

PLL Lock Time

(5)

3kHz bandwidth

902MHz to 927MHz

1.7

PLL Lock Time

(5)

20kHz bandwidth

915MHz to 915.5MHz

0.3

Rx – Tx

0.6

Tx – Rx

0.6

Standby Rx

1.1

Switch Time

(5)

3kHz loop bandwidth

Standby Tx

1.2

Crystal Oscillator Start-Up

Time

16MHz, 9pF load, 5.6pF loading

capacitors

1.2

VCPOUT = 1.1V, CP_HI = 0

125

µA

Charge Pump Current

VCPOUT = 1.1V, CP_HI = 1

500

µA

Transmit Section

RLOAD = 50

Ω, Pa2-0-111

dBm

Output Power

RLOAD = 50

Ω, Pa2-0-001

-8

dBm

Over temperature range

Output Power Tolerance

Over power supply range

RLOAD = 50

Ω, Pa2-0-111

Tx Current Consumption

RLOAD = 50

Ω, Pa2-0-001

Binary FSK Frequency

Separation

(5)

Birate = 200kbps

500

kHz

VCO modulation

200

kbps

Data Rate

(5)

Divider modulation

kbps

38.4kbps,

β = 2, 20dBc

kHz

Occupied bandwidth

(5)

125kbps,

β = 2, 20dBc

kHz

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